1. Someone that you ice cold chill with
2. My nigga
Me and the nigga there go way back he is my ace boon coon
by GQDreAmeR January 12, 2005
Your dawg, homeboy, homegirl. Someone who your mad cool with.
Where you been girl? We used to be ace boon coon!
by Regina Holcombe January 24, 2009
A term used to describe one's inner circle of friends, also known as niggas.
"My acebooncoons and I got fucked up this weekend"
by jaydonnelljoe November 03, 2008
noun phrase

A very good friend; best friend (Black to black and male to male)
I like the guy, but he's not what you would call my ace boon coon
by P.M.V. October 19, 2014
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